From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Schade Subject: Re: Restoring saved guest causes guest to reboot Date: Thu, 26 May 2011 13:28:53 +0200 Message-ID: <4DDE3975.6020709@gmail.com> References: <20110524091810.GH23407@8bytes.org> <20110524094023.GI23407@8bytes.org> <20110524130208.GJ23407@8bytes.org> <4DDBB085.2010907@redhat.com> <4DDBB5D3.3020403@redhat.com> <4DDCA687.9080506@gmail.com> <4DDDF6D1.1070907@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Joerg Roedel , kvm@vger.kernel.org To: Avi Kivity Return-path: Received: from jack.hrz.tu-chemnitz.de ([134.109.132.46]:38293 "EHLO jack.hrz.tu-chemnitz.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757373Ab1EZMGR (ORCPT ); Thu, 26 May 2011 08:06:17 -0400 In-Reply-To: <4DDDF6D1.1070907@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 05/26/2011 08:44 AM, Avi Kivity wrote: > On 05/25/2011 09:49 AM, Markus Schade wrote: >> >> Git bisect tells me that this is the first bad commit: >> -----------------%<----------------- >> aff48baa34c033318ad322ecbf2e4bcd891b29ca is the first bad commit >> commit aff48baa34c033318ad322ecbf2e4bcd891b29ca Author: Avi Kivity >> Date: Sun Dec 5 18:56:11 2010 +0200 >> >> KVM: Fetch guest cr3 from hardware on demand >> >> Instead of syncing the guest cr3 every exit, which is expensince on >> vmx with ept enabled, sync it only on demand. >> >> [sheng: fix incorrect cr3 seen by Windows XP] >> >> Signed-off-by: Sheng Yang Signed-off-by: >> Avi Kivity >> > > Does your machine have ept? > > (cat /sys/module/kvm_intel/parameters/ept) > Sure. (Assuming that the Y means yes). I am no C developer, but I was wondering, if the issue is related to the difference in ept_update_paging_mode_cr0 between original patch in the kvm git and the linux-2.6. git tree. Best regards, Markus